1、Designation: B173 10Standard Specification forRope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conductors1This standard is issued under the fixed designation B173; the number immediately following the designation indicates the year oforiginal adoption or, in the
2、 case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This s
3、pecification covers bare rope-lay-stranded con-ductors having concentric-stranded members made from roundcopper wires, either uncoated or coated with tin, lead, orlead-alloy for use as electrical conductors (Explanatory Note 1and Note 2).1.2 Coated wires shall include only those wires with fin-ished
4、 diameters and densities substantially equal to the respec-tive diameters and densities of uncoated wires.1.3 The values stated in inch-pound or SI units are to beregarded separately as standard. Each system shall be usedindependently of the other. Combining values from the twosystems may result in
5、nonconformance with the specification.For conductor sizes designated by AWG or kcmil, the require-ments in SI units have been numerically converted fromcorresponding values, stated or derived, in inch-pound units.For conductor sizes designated by SI units only, the require-ments are stated or derive
6、d in SI units.1.3.1 For density, resistivity, and temperature, the valuesstated in SI units are to be regarded as standard.2. Referenced Documents2.1 The following documents of the issue in effect at thetime of reference form a part of this specification to the extentreferenced herein:2.2 ASTM Stand
7、ards:2B3 Specification for Soft or Annealed Copper WireB8 Specification for Concentric-Lay-Stranded Copper Con-ductors, Hard, Medium-Hard, or SoftB33 Specification for Tin-Coated Soft or Annealed CopperWire for Electrical PurposesB172 Specification for Rope-Lay-Stranded Copper Con-ductors Having Bun
8、ch-Stranded Members, for ElectricalConductorsB189 Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical PurposesB193 Test Method for Resistivity of Electrical ConductorMaterialsB263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB354 Terminol
9、ogy Relating to Uninsulated Metallic Elec-trical Conductors2.3 American National Standard:ANSI C42.35 Definitions of Electrical Terms33. Classification3.1 For the purpose of this specification rope-lay-strandedconductors having concentric-stranded members are classifiedas follows:3.1.1 Class GConduc
10、tors consisting of 7 to 61 rope-lay-stranded members, each of which consists of 7 to 19concentric-stranded wires, with total conductor sizes rangingfrom No. 14 AWG (2.08 mm2) to 5 000 000 cmil (2534 mm2).(Typical use is for rubber-sheathed conductor, apparatus con-ductor, portable conductor, and sim
11、ilar applications.)3.1.2 Class HConductors consisting of 19 to 91 rope-lay-stranded members, each of which consists of 7 to 19concentric-stranded wires, with total conductor sizes rangingfrom No. 9 AWG (6.63 mm2) to 5 000 000 cmil (2534 mm2).Class K construction produces a conductor with greater fle
12、x-ibility than class G. (Typical use is for rubber-sheathed cordand applications where flexibility is required such as ontake-up reels over sheaves and extra-flexible apparatus con-ductor.)4. Ordering Information4.1 Orders for material under this specification shall includethe following information:
13、4.1.1 Quantity of each size and class;4.1.2 Conductor size: circular-mil area or AWG (Section 7);4.1.3 Class (Section 3 and Tables 1 and 2);1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.04 onConductors
14、 of Copper and Copper Alloys.Current edition approved April 1, 2010. Published May 2010. Originallyapproved in 1942 to replace portions of B158 41 T. Last previous edition approvedin 2007 as B173 01a (2007)1. DOI: 10.1520/B0173-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org,
15、 orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1Co
16、pyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE 1 Constructional and DC Resistance Requirements of Rope-Lay Stranded Copper Conductors Having Concentric-Stranded MembersClass GAArea of CrossSectionSizeAWGCompleted ConductorBUncoat
17、ed Copper Tinned CopperNumberofWiresDiameterofWiresNumberofWiresin EachMemberNominal DiameterNominalMassNominal DCResistance 20CMaximum DCResistance 20CNominal DCResistance 20CMaximum DCResistance20Ccmil mm2in. mm in. mmlb/1000 ftkg/kmohm/1000 ftohm/kmohm/1000 ftohm/kmohm/1000ftohm/kmohm/1000ftohm/k
18、m5 000 000 2534 . . . 1159 0.0657 1.67 19 2.957 75.1 16 052 23 888 0.00220 0.00721 0.00224 0.00735 0.00229 0.00750 0.00234 0.007654 500 000 2280 . . . 1159 0.0623 1.58 19 2.804 71.2 14 433 21 479 0.00244 0.00801 0.00249 0.00817 0.00254 0.00833 0.00259 0.008504 000 000 2027 . . . 1159 0.0587 1.49 19
19、2.642 67.1 12 814 19 069 0.00275 0.00902 0.00281 0.00920 0.00286 0.00938 0.00292 0.009573 500 000 1773 . . . 1159 0.0550 1.40 19 2.475 62.9 11 249 16 741 0.00314 0.0103 0.00320 0.0105 0.00327 0.0107 0.00334 0.01093 000 000 1520 . . . 1159 0.0509 1.29 19 2.291 58.2 9635 14 338 0.00366 0.0120 0.00373
20、0.0122 0.00381 0.0125 0.00389 0.01282 500 000 1267 . . . 703 0.0596 1.51 19 2.086 53.0 8012 11 924 0.00440 0.0144 0.00449 0.0147 0.00457 0.0150 0.00466 0.01532 000 000 1013 . . . 703 0.0533 1.35 19 1.866 47.4 6408 9536 0.00550 0.0180 0.00561 0.0184 0.00572 0.0188 0.00583 0.01921 900 000 963 . . . 70
21、3 0.0520 1.32 19 1.820 46.2 6099 9077 0.00579 0.0190 0.00591 0.0194 0.00602 0.0197 0.00614 0.02011 800 000 912 . . . 703 0.0506 1.29 19 1.771 45.0 5775 8594 0.00611 0.0200 0.00623 0.0204 0.00635 0.0208 0.00648 0.02121 750 000 887 . . . 703 0.0499 1.27 19 1.747 44.4 5617 8358 0.00628 0.0206 0.00641 0
22、.0210 0.00653 0.0214 0.00666 0.02181 700 000 861 . . . 703 0.0492 1.25 19 1.722 43.7 5460 8125 0.00647 0.0212 0.00660 0.0216 0.00672 0.0221 0.00685 0.02251 600 000 811 . . . 703 0.0477 1.21 19 1.670 42.4 5132 7638 0.00687 0.0225 0.00701 0.0230 0.00715 0.0234 0.00729 0.02391 500 000 760 . . . 427 0.0
23、593 1.51 7 1.601 40.7 4772 7102 0.00726 0.0238 0.00741 0.0243 0.00755 0.0248 0.00770 0.02531 400 000 709 . . . 427 0.0573 1.46 7 1.547 39.3 4456 6631 0.00778 0.0255 0.00794 0.0260 0.00809 0.0265 0.00825 0.02701 300 000 659 . . . 427 0.0552 1.40 7 1.490 37.8 4135 6154 0.00838 0.0275 0.00855 0.0281 0.
24、00871 0.0286 0.00888 0.02921 250 000 633 . . . 427 0.0541 1.37 7 1.461 37.1 3972 5911 0.00871 0.0286 0.00888 0.0292 0.00906 0.0297 0.00924 0.03031 200 000 608 . . . 427 0.0530 1.35 7 1.431 36.3 3812 5673 0.00907 0.0298 0.00925 0.0304 0.00944 0.0310 0.00963 0.03161 100 000 557 . . . 427 0.0508 1.29 7
25、 1.372 34.8 3502 5212 0.00990 0.0325 0.0101 0.0332 0.0103 0.0338 0.0105 0.03451 000 000 507 . . . 427 0.0484 1.23 7 1.307 33.2 3179 4731 0.01090 0.0357 0.0111 0.0364 0.0113 0.0372 0.0115 0.0379900 000 456 . . . 427 0.0459 1.17 7 1.239 31.5 2859 4255 0.0121 0.0397 0.0123 0.0405 0.0126 0.0413 0.0129 0
26、.0421800 000 405 . . . 427 0.0433 1.10 7 1.169 29.7 2544 3787 0.0136 0.0447 0.0139 0.0456 0.0142 0.0464 0.0145 0.0473750 000 380 . . . 427 0.0419 1.06 7 1.131 28.7 2383 3546 0.0145 0.0476 0.0148 0.0486 0.0151 0.0495 0.0154 0.0505700 000 355 . . . 427 0.0405 1.03 7 1.094 27.8 2226 3313 0.0156 0.0510
27、0.0159 0.0520 0.0162 0.0531 0.0165 0.0542650 000 329 . . . 427 0.0390 0.99 7 1.053 26.7 2064 3072 0.0168 0.0550 0.0171 0.0561 0.0174 0.0572 0.0177 0.0583600 000 304 . . . 427 0.0375 0.95 7 1.013 25.7 1908 2840 0.0181 0.0595 0.0185 0.0607 0.0189 0.0619 0.0193 0.0631550 000 279 . . . 427 0.0359 0.91 7
28、 0.969 24.6 1749 2603 0.0198 0.0650 0.0202 0.0663 0.0206 0.0676 0.0210 0.0690500 000 253 . . . 259 0.0439 1.12 7 0.922 23.4 1579 2350 0.0217 0.0711 0.0221 0.0725 0.0225 0.0740 0.0230 0.0755450 000 228 . . . 259 0.0417 1.06 7 0.876 22.3 1425 2120 0.0241 0.0790 0.0246 0.0806 0.0251 0.0822 0.0255 0.083
29、8400 000 203 . . . 259 0.0393 1.00 7 0.825 21.0 1265 1883 0.0271 0.0889 0.0276 0.0907 0.0282 0.0924 0.0288 0.0942350 000 177 . . . 259 0.0368 0.93 7 0.773 19.6 1109 1651 0.0310 0.102 0.0316 0.104 0.0322 0.106 0.0328 0.108300 000 152 . . . 259 0.0340 0.86 7 0.714 18.1 947 1409 0.0361 0.119 0.0368 0.1
30、21 0.0376 0.123 0.0384 0.125250 000 127 . . . 259 0.0311 0.79 7 0.653 16.6 792 1179 0.0434 0.142 0.0443 0.145 0.0451 0.148 0.0460 0.151211 600 107 0000 133 0.0399 1.01 7 0.599 15.2 667 992 0.0510 0.167 0.0520 0.170 0.0530 0.174 0.0541 0.177167 800 85.0 000 133 0.0355 0.90 7 0.533 13.5 528 785 0.0643
31、 0.211 0.0656 0.215 0.0668 0.219 0.0681 0.223133 100 67.4 00 133 0.0316 0.80 7 0.474 12.0 418 622 0.0810 0.266 0.0826 0.271 0.0843 0.276 0.0860 0.282105 600 53.5 0 133 0.0282 0.72 7 0.423 10.7 333 495 0.102 0.335 0.104 0.342 0.106 0.348 0.108 0.35583 690 42.4 1 133 0.0251 0.64 7 0.377 9.6 264 393 0.
32、129 0.423 0.132 0.431 0.134 0.440 0.137 0.44966 360 33.6 2 49 0.0368 0.93 7 0.331 8.4 207 308 0.161 0.528 0.164 0.539 0.167 0.549 0.170 0.56052 620 26.7 3 49 0.0328 0.83 7 0.295 7.5 164 245 0.203 0.666 0.207 0.679 0.211 0.693 0.215 0.70741 740 21.1 4 49 0.0292 0.74 7 0.263 6.7 130 194 0.256 0.840 0.
33、261 0.857 0.266 0.873 0.271 0.89033 090 16.8 5 49 0.0260 0.66 7 0.234 5.9 103 154 0.323 1.06 0.329 1.08 0.336 1.10 0.343 1.1226 240 13.3 6 49 0.0231 0.59 7 0.208 5.3 81.5 121 0.407 1.34 0.415 1.37 0.423 1.39 0.431 1.4220 820 10.5 7 49 0.0206 0.52 7 0.185 4.7 64.8 96.5 0.513 1.68 0.523 1.71 0.534 1.7
34、5 0.545 1.7916 510 8.37 8 49 0.0184 0.47 7 0.166 4.2 51.7 77.0 0.647 2.12 0.660 2.16 0.687 2.25 0.701 2.3013 090 6.63 9 49 0.0163 0.41 7 0.148 3.8 40.6 60.4 0.816 2.68 0.832 2.73 0.867 2.84 0.884 2.9010 380 5.26 10 49 0.0146 0.37 7 0.131 3.3 32.6 48.5 1.03 3.38 1.05 3.45 1.09 3.59 1.11 3.666530 3.31
35、 12 49 0.0115 0.29 7 0.104 2.6 20.2 30.1 1.64 5.37 1.67 5.48 1.74 5.70 1.77 5.81B173102TABLE 1 ContinuedArea of CrossSectionSizeAWGCompleted ConductorBUncoated Copper Tinned CopperNumberofWiresDiameterofWiresNumberofWiresin EachMemberNominal DiameterNominalMassNominal DCResistance 20CMaximum DCResis
36、tance 20CNominal DCResistance 20CMaximum DCResistance20Ccmil mm2in. mm in. mmlb/1000 ftkg/kmohm/1000 ftohm/kmohm/1000 ftohm/kmohm/1000ftohm/kmohm/1000ftohm/km4110 2.08 14 49 0.0092 0.23 7 0.083 2.1 12.9 19.2 2.60 8.53 2.65 8.70 2.79 9.15 2.85 9.33AThe constructions shown in this table are typical of
37、 those used in the industry. It is not intended that this table preclude other constructions that may be desirable for specific applications. The constructions shownprovide for a finished, non-covered, stranded conductor approximately of the area indicated. When specified by the purchaser, the numbe
38、r or size of wires may be increased to provide additional area to compensatefor draw-down during subsequent processing.BValues for the nominal diameter and mass of the completed conductor are approximate. The mass values are based upon the standard stranding increments listed in Explanatory Note 6.B
39、173103TABLE 2 Constructional and DC Resistance Requirements of Rope-Lay Stranded Copper Conductors Having Concentric-Stranded MembersClass HAArea ofCross SectionSizeAWGNumberof WiresDiameter of WiresNumberofWiresin EachMemberCompleted ConductorBUncoated Copper Tinned CopperNominal DiameterNominalMas
40、sNominal DCResistance20CMaximum DCResistance20CNominal DCResistance20CMaximum DCResistance20Ccmil mm2in. mm in. mmlb/1000 ftkg/kmohm/1000ftohm/kmohm/1000ftohm/kmohm/1000ftohm/kmohm/1000ftohm/km5 000 000 2534 . . . 1729 0.0538 1.37 19 2.959 75.2 16 057 23 896 0.00220 0.00721 0.00224 0.00735 0.00229 0
41、.00750 0.00234 0.007654 500 000 2280 . . . 1729 0.0510 1.30 19 2.805 71.2 14 429 21 473 0.00244 0.00801 0.00249 0.00817 0.00254 0.00833 0.00259 0.008504 000 000 2027 . . . 1729 0.0481 1.22 19 2.646 67.2 12 835 19 101 0.00275 0.00902 0.00281 0.00920 0.00286 0.00938 0.00292 0.009573 500 000 1773 . . .
42、 1729 0.0450 1.14 19 2.475 62.9 11 234 16 718 0.00314 0.0103 0.00320 0.0105 0.00327 0.0107 0.00334 0.01093 000 000 1520 . . . 1729 0.0417 1.06 19 2.294 58.3 9647 14 356 0.00366 0.0120 0.00373 0.0122 0.00381 0.0125 0.00389 0.01282 500 000 1267 . . . 1159 0.0464 1.18 19 2.088 53.0 8006 11 915 0.00440
43、0.0144 0.00449 0.0147 0.00457 0.0150 0.00466 0.01532 000 000 1013 . . . 1159 0.0415 1.05 19 1.868 47.4 6405 9531 0.00550 0.0180 0.00561 0.0184 0.00572 0.0188 0.00583 0.01921 900 000 963 . . . 1159 0.0405 1.03 19 1.823 46.3 6100 9077 0.00579 0.0190 0.00591 0.0194 0.00602 0.0197 0.00614 0.02011 800 00
44、0 912 . . . 1159 0.0394 1.00 19 1.773 45.0 5773 8591 0.00611 0.0200 0.00623 0.0204 0.00635 0.0208 0.00648 0.02121 750 000 887 . . . 1159 0.0389 0.99 19 1.751 44.5 5627 8374 0.00628 0.0206 0.00641 0.0210 0.00653 0.0214 0.00666 0.02181 700 000 861 . . . 1159 0.0383 0.97 19 1.724 43.8 5455 8118 0.00647
45、 0.0212 0.00660 0.0216 0.00672 0.0221 0.00685 0.02251 600 000 811 . . . 1159 0.0372 0.94 19 1.674 42.5 5146 7658 0.00687 0.0225 0.00701 0.0230 0.00715 0.0234 0.00729 0.02391 500 000 760 . . . 703 0.0462 1.17 19 1.617 41.1 4815 7165 0.00733 0.0240 0.00748 0.0245 0.00762 0.0250 0.00777 0.02551 400 000
46、 709 . . . 703 0.0446 1.13 19 1.561 39.6 4487 6677 0.00785 0.0258 0.00801 0.0263 0.00817 0.0268 0.00833 0.02731 300 000 659 . . . 703 0.0430 1.09 19 1.505 38.2 4171 6207 0.00846 0.0277 0.00863 0.0283 0.00879 0.0289 0.00897 0.02951 250 000 633 . . . 703 0.0422 1.07 19 1.477 37.5 4017 5978 0.00879 0.0
47、289 0.00897 0.0295 0.00915 0.0300 0.00933 0.03061 200 000 608 . . . 703 0.0413 1.05 19 1.446 36.7 3847 5726 0.00916 0.0301 0.00934 0.0307 0.00953 0.0313 0.00972 0.03191 100 000 557 . . . 703 0.0396 1.01 19 1.386 35.2 3537 5264 0.00999 0.0328 0.0102 0.0335 0.0104 0.0341 0.0106 0.03481 000 000 507 . .
48、 . 703 0.0377 0.96 19 1.320 33.5 3206 4771 0.0110 0.0361 0.0112 0.0368 0.0114 0.0375 0.0116 0.0383900 000 456 . . . 703 0.0358 0.91 19 1.253 31.8 2891 4302 0.0122 0.0401 0.0124 0.0409 0.0127 0.0417 0.0130 0.0425800 000 405 . . . 703 0.0337 0.86 19 1.180 30.0 2562 3812 0.0137 0.0451 0.0140 0.0460 0.0
49、143 0.0469 0.0146 0.0478750 000 380 . . . 703 0.0327 0.83 19 1.145 29.1 2412 3589 0.0147 0.0481 0.0150 0.0491 0.0152 0.0500 0.0155 0.0510700 000 355 . . . 703 0.0316 0.80 19 1.106 28.1 2252 3352 0.0157 0.0515 0.0160 0.0525 0.0163 0.0536 0.0166 0.0547650 000 329 . . . 703 0.0304 0.77 19 1.064 27.0 2085 3102 0.0169 0.0555 0.0172 0.0566 0.0176 0.0577 0.0180 0.0589600 000 304 . . . 703 0.0292 0.74 19 1.022 26.0 1923 2862 0.0183 0.0601 0.0187 0.0613 0.0191 0.0625 0.0195 0.0638550 000 279 . . . 703 0.0280 0.71 19 0.980 24.9 1768 2632 0.0200 0.0656 0.0204 0.0669 0.0208
